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34389970 = 256156377
BaseRepresentation
bin1000001100101…
…1111111010010
32101201012011121
42003023333102
532300434340
63225032454
7565211206
oct203137722
971635147
1034389970
111845976a
12b62572a
1371811c4
1447d2b06
15304494a
hex20cbfd2

34389970 has 16 divisors (see below), whose sum is σ = 62917848. Its totient is φ = 13530240.

The previous prime is 34389967. The next prime is 34390009. The reversal of 34389970 is 7998343.

It can be written as a sum of positive squares in 4 ways, for example, as 7360369 + 27029601 = 2713^2 + 5199^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27579 + ... + 28798.

Almost surely, 234389970 is an apocalyptic number.

34389970 is a deficient number, since it is larger than the sum of its proper divisors (28527878).

34389970 is a wasteful number, since it uses less digits than its factorization.

34389970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56445.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 34389970 is about 5864.2962067072. The cubic root of 34389970 is about 325.1950545088.

The spelling of 34389970 in words is "thirty-four million, three hundred eighty-nine thousand, nine hundred seventy".

Divisors: 1 2 5 10 61 122 305 610 56377 112754 281885 563770 3438997 6877994 17194985 34389970